frequency的例句（frequency在句子中的用法）

• Its downholc discharge apparatus are made up of rectification frequency converter, discharger and cable. 其井下放电设备主要是由整流变频器 、 电仪与电缆所组成.
• Medium frequency transformer quenching is used for workpiece diathermy, quenching, annealing, brazing, etc. 中频淬火变压器用于工件的透热 、 淬火 、 退火 、 弯管钎焊等工艺.
• Result The effectual rate with diathermy of ultra intermediate frequency is 85 %. 结果观察组显效率85%,对照组显效率60%.
• FM receiver through demodulation , the frequency signals into sound signals. 调频接收机通过解调, 鉴频将信号转换成声音信号.
• Then by changing the decimation ratio of the SINC filter, frequency selecting is realized. 在某一固定输出频率下设计一组带通滤波器, 然后通过改变SINC滤波器 信号抽取比率实现数字选频.
• Expenses for repairing and maintenance were reduced after the frequency sound wave deashing device was used. 经采用低频声波清灰装置,减少了检修和维护的费用.
• The transmitterof DHF uses DDS to synthesize frequency. 发射机采用直接数字频率合成器(DDS)生成频率,具有精度高、频率跳变速度快的特点.
• The cyclotron frequency can also be derived by an elementary argument. 回转频率也可以通过浅显的论证导出来.
• Extrusion System: frequency variable motor, cycloidal pin gear speed reducer and high qualitynitrifiedfeed cylinder screw. 挤出系统: 变频调速电机 、 摆线针轮减速箱加优质氮化料筒罗杆.
• This paper focuses on voltage regulation strategies of 400 Hz CVCF ( Constant Voltage Constant Frequency ) inverter. 本文研究了400Hz恒压恒频 ( CVCF ) 中频电源逆变器波形控制策略.
• In this paper a hybrid fuzzy - repetitive control scheme for 400 Hz constant - voltage constant - frequency ( CVCF ) inverters is presented. 针对400Hz恒压恒频 ( CVCF ) 逆变器,提出了一种模糊 - 重复混合控制方案.
• Discuss about using High - frequency electric coagulator in Electrocautery to treat prolapse of gastric mucosa. 目的本文将介绍以高频电灼凝法治疗胃粘膜脱垂症.
• With this restricted frequency range it is not applicable to hydrocarbons. 这个较紧缩的频率范围不适用于烃类.
• The results show that the Heihe region Cercospora Race greater the number and frequency changes. 结果表明黑河地区灰斑病生理小种数目和频率有较大变化.
• A new method for further frequency analysis whose name is wavelet - cepstrum is established. 建立了一种新的二次频谱分析方法,首次提出了小波倒频谱的概念.
• Subjective judgments based on frequency graphs vary greatly from cartographer to cartographer. 根据频率图所作的主观判断,因编图人员不同而变化甚大.
• The performance of cotton carder auto leveller in frequency field was studied and estimated. 探讨了清梳联自调匀整系统的频率性能的推导和估计.
• High elasticity facilitates capsulotomy and affords ocular protection against high - frequency mechanical insults. 高弹性特征可易化撕囊难度和提供机械震动的吸收.
• The performance of frequency cali - brator is directly related to precision transfering frequen - cy standard. 校 频仪 的性能,直接关系到传递频率标准的精度.
• Results High frequency ultrasound could confirm trauma of tendo calcaneus. 结果高频超声能清晰显示跟腱的损伤程度.